YDYT9800 position measurements sensor

YDYT9800 vibration and position measurements sensor 1. Anti-interference ability 2. Operating temperature: -50 ~ +120 degree

YDYT9800 Vibration and Position Measurements Sensor

 

Brief Introduction

YDYT9800 Series Integrated Eddy Current Displacement Sensor is widely used in electric power, petrochemical, metallurgy, machinery and other industries, monitoring the shaft displacement, shaft vibration, shaft speed and other parameter of the large rotating machinery for long-term, the instrument can analyze the working conditions and the cause of the equipment failure thus effectively protect the equipment and have predictive maintenance, the instrument can also measure the displacement, amplitude, speed, size,  thickness, surface roughness etc.

 

Performance Indicators

Integrated eddy current displacement sensor designed and manufactured according to U.S.  military specifications, the head of the probe using resistant to high / low temperature and injection molding protection by various chemical corrosion of polyphenylene sulfide (PPS), the coil is hermetically sealed;  circuit using anti-acid stainless steel tube M16 × 1 thread and epoxy package, moisture and dust resistance, signal cable with shielded cable,  stainless steel metal hose armor protection is available; with power polarity, output short circuit protection features , any connection error will not cause damage , Continuous operation under harsh environments is feasible.1. Non-contact measurement, never worn.

2. Anti-interference ability, high reliability, long life.

3. Operating temperature: -50 ~ +120 °C; Drift: 0.05% / °C.

4. Output format: three-wire voltage or current output.

5. Frequency Response: 0 ~ 10kHz, amplitude-frequency characteristic 0 ~ 1kHz attenuation is less than 1%, 10kHz attenuation is less than 5%, Phase-frequency characteristic 0 ~ 1kHz phase difference is less than -10 °, 10kHz is less than -100 ° phase.6. Form of the output voltage sensor power supply: +12 Vdc ~ +30 Vdc, output range 0.1 ~ 10.5V or 1 ~5V, Power consumption ≤ 12mA (excluding output current); current output form the sensor power supply: +18 Vdc ~ +30 Vdc, 4 ~ 20mA current output, power consumption ≤ 12mA (excluding output current).

7. Ripple when measured gap is constant, the maximum output noise peak-peak noise): sensor output ripple of the voltage output forms is less 20mV; sensor output ripple of the current output forms is less than 30uA.

8. Load capacity: sensor output impedance of the voltage output is greater than 10Ω,  maximum current 40mA, maximum drive signal cable length 300m; 4 ~ 20mA current output sensor,maximum load resistance is not less than 750Ω, maximum load resistance with output change -1%.

9. Measurement parameters

 

10. Dimensions

Diameter of the probe head (mm)	Parallel installation for two probes DPX(mm)	Vertical installation for two probes (Measured body is round.) DCY(mm)	Vertical installation for two probes Measured body is square. DCY(mm)
φ5	40.6	35.6	22.9
φ8	40.6	35.6	22.9
φ11	80	70	40
φ25	150	120	80
φ50	200	180	150

 

 

Calibration

If the sensor is not used for more than one year or continuous used for more than two years, it should be calibrated again. There is a small potentiometer at the tail end of the shell of the integrated eddy current sensor, by adjusting the potentiometer; it is easy to do the displacement calibration for the sensitivity and linearity of the sensor. We recommend the user to use YD20 static displacement calibrator of our company as the calibration device. After the calibration, please seal the potentiometer with silica gel firmly to prevent changing the resistance value of the potentiometer during the usage process.

 

 

More detailed instructions please refer to our "YD9800 series of eddy current displacement sensor user manual."

 

YDYT9800 position measurements sensor